SOLUTION: Eric drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 450 miles?

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Question 675786: Eric drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 450 miles?
Found 2 solutions by unlockmath, stanbon:
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
We can set this up as a proportion.
250/9=450/x
Multiply by x & 9:
250x=450(9)
Divide by 250:
x=16.2 gallons
make sense?
RJ
www.math-unlock.com

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Eric drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 450 miles?
------
Use a proportion:
x/450 = 9/250
x = (450)(9/250)
----
x = 16.2 gallons
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Cheers,
Stan H.